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Intro DS Phys. Sci.

12 test questions

What is a chemical change? Starting with one substance and it ends up as something different.
What is a physical change? A change that can be changed back easily. It starts and end as the same substance.
What does a chemical change look like? Bubbles, fire, explosions, smell.
What is matter? Anything that exists.
What does matter have to have? Has weight or mass and takes up space.
What are atoms? The smallest parts of matter. Everything that exists, even cells, are made of atoms.
What are cells? The smallest parts of living things. All living things have cells.
What are big things made out of? Little things.
What are the three states of matter? Solid, liquid, gas.
How do you melt a solid into a liquid? Heat it up.
How do you turn a liquid into a solid? Cool it down.
What are the two parts of a vector? Size and direction.
Created by: conard